Cable-grip for cable-hauled trucks and the like.



No. 817,053. PATENTED APR. 3, 1906. W. BLLINGBN & F. DOEHLB. CABLE GRIPFOR CABLE HAULED TRUCKS AND THE LIKE.

APPLIGATION FILED JAN. 25, 1904.

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No. 817,058. I I PATENTED APR. 3, 1906.

W. ELLINGEN 8; P. DOEHLE. CABLE GRIP FOR CABLE HAULED TRUCKS AND THELIKE.

APPLIGATION FILED JAN.25, 1904.

3 SHEETS-SHEET 2.

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PATENTED APR. 3, 1906.

W. ELLINGEN & F. DOEHLB.

CABLE GRIP FUR CABLE HAULED TRUCKS AND THE'LIKE.

APPLICATION FILED JAN. 25, 1904.

3 SHEETS-SHEET 3.

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WILHELM ELLINGEN, OF COLOGNE, GERMANY, AND FRITZ DOEHLE, OF

GENEVA, SWITZERLAND, ASSIGNORS TO J. POHLIG, AKTIEN-GESELL- SOI-IAFT, OFOOLOGNE-ZOLLSTOOK, GERMANY.

Specification of Letters Patent.

Patented April 3, 1906.

Application filed January 25, 1904:. Serial No. 190.497.

To all whom it may concern.-

Be it known that we, WILHELM ELLIN- GEN, residing atOologne-on-theRhin.e, Germany, and FRITZ DOEHLE residing at Geneva,Switzerland, subjects of the King of Prussia, German Emperor, haveinvented certain new and useful Improvements Relating to Cable- Gripsfor Cable-Hauled. Trucks and the Like; and we do hereby declare thefollowing to be a full, clear ,and exact description of the inven tion,such as will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,and to letters of reference marked thereon, which form a part of thisspecification. I

This invention relates to carriages or rope haulage, and more especiallyto the arrangement of a pivoted or movable grip that may be applied tocarriages of ropeways or traction systems using fixed rails, saidgrip-being so constructed as to easily pass the sheaves guiding thetraction-rope without opening the gripping-jaws or throwin the rope outof the grooves in the sheaves, t iereby allowing these sheaves to beplaced. at any angle and the carriages to pass around any desired curve,whether horizontal, inclined, or vertical.

The invention further relates to details of structure to be hereinafterdescribed and claimed.

Referring to the drawings, in which like parts are similarly designated,Figure 1 is a front view of an overhead rope-carriage. Fig. 2 shows themanner in which the pivoted grip engages variously positioned traction-rope sheaves, the last-mentioned figure also showing the grip carriedat the top of the carriage. Figs. 3 and a show the grip applied to a caron a fixed track. Figs. 5, 6, 7, and 8 are views showing one form ofstructure of the grip. Figs. 9, 10, and 11 show a modification, Fig. 12another modification, and Figs. 13, 14, and 15 show ropeway-carriagesprovided with counterweights.

Referring to Figs. 1, 2, a is the carrier-rope of an overhead ropehaulage system, i the traction-rope by which the carriage b is hauledalong the way, and f one of the guide-sheaves for the traction-rope 7/.The carriage b has the pivoted arm (1, revoluble about a horizontal axisor pivot-pin c, and its free end being constructed as a rope-grip. Thisgrip comprises the pivoted arm against whose hook-shaped end (P, Figs.5, 7, are forced one or more aws m to clamp the tractionrope i in thehook (P. The movable jaw or jaws are actuated by suitable operatingdevices on the carriage b, which operate intermediate the aXis ofrevolution of the jaws and hook or directly on this axis, so that thesej aw-actuating devices are independent of any position of the hook end(1". The hook is pivoted at 0 between two legs I), each pro vided with arecess b registering with the hook, so that the rope will lie in therecesses when. the arm (I is in its lowermost position. In Fig. 2 thearmgrip is shown traveling with the rope i around a horizontal sheave f,the rim of the sheave thus acting as a track around which the carriageis guided, the legs I) being so shaped as to prevent the said ro e ifrom being thrown off the sheave when the grip is in its lowermostposition.

Referring more particularly to Figs. 5, 8, for one structure of grip itwill be seen that the legs I) of the carriage b have a slidablepivot-pin c, on which the arm d is pivoted. The arm is hollow at itspivot end and is provided with a boss d, in which is arranged acoil-spring 72,, inclosed in a cylindrical casing 9, carried by andabutting against the enlarged end 2 of the pivot-pin c. The cylindricalcasing g carries a bearing element It, in which is pivoted one end ofrocker-arms Z, whose other ends carry the movable jaw m, as shown, andthereby form a parallel motion in which the one member is moved parallelto the other member to and from the hook end (P. The operating-lever pof the pivot-pin 0 being released, the pin 0 and easing g are forced bythe pressure of the spring h to move the movable jaw on into grippingposition. When the faces of the clamping-jaws form wedge-shaped grooves,the rope is securely held during the travel of the carriage alonginclines. The means to axially move the pin 0 consists of a lever p,pivoted in the carriage b and whose shorter forked arm engages the endof the pin 0. The longer arm thereof carries a roller y, that contactsagainst an inclined rail q, secured the carriage is to be released.riage reaches such a rail q; the roller 1 is depressed. and brought tothe position shown in dotted lines, Fig. 6, and parts of the grip assumethe position shown in Fig. 8. If desired, the lever 29 can be moved byhand, and, if desired, the spring h can be replaced by a weight on thelever.

When the hauling-rope is above the carrierrope, Fig. 2, the rail 9 actson a lever p having a rod 1), connecting it with a lever 19, engagingthe pivot-pin of the arm d.

The sheave f may have various positions, as shown in Figs. 2, 3, and 1,the latter showing the grip applied to a car on a fixed track.

, A modification of the gripping mechanism is shown in Figs. 9, 11 andcomprises two screws 8, having bearings in the carriage I), said screwshaving on their inner ends gears s and rotatable about stub-shafts n Tothese shafts are pivoted the arms n of the movable jaws n, both havin acommon pivot 0 in the jaw 61 A rack r, engaging both gears, carries aroller t, that engages the rail 9 to raise and depress the rack, andthereby rotate the gears s and screws 8 to move the arms a to and fromeach other, thereby releasing and clamping the rope. The carriage b inthis case is similar in form to that shown in Figs. 5 and 6 and has astraight depending piece 10, to which the bucket. is secured, and allowsthis piece 10 to pass between the sheave f and the rope during thepassage of the carriage past a sheave without disturb ing the drivage.The jaws may both be movable so long as they form an arm movable about apivot and conform when closed to the shape of the grooves in thesupportingsheaves for the hauling-rope.

Fig. 12 shows a structure similar to Fig. 11, in which there are twolevers n, pivoted together at 00; but in this case the levers carrygripping-jaws n and if, that move toward each other in clamping the ropei.

When traveling on inclined sections of a ropeway, the wheels on thecarrier-rope have a tendency to slip ofi the carrier-rope, due to thetendency of the loaded carriage to assume a vertical position and alsothat the haulingrope is secured. in the end of the revoluble arm and aptto be held somewhat to the side of the vertical plane through thecarrier-rope. To avoid this, the carriages are provided withcounterweights w, Figs. 13, 15, substantially equal to the weight of thecarriage above the traction-rope i and situated below the point ofattachment of the bucket to the carriage. In Fig. 13 a carrier for thewheels 00 is pivoted at z to the carriage and the bucket a hung on abolt 0) in an arcuate slot w of the sector-shaped counterweight 'w. Thecenter of the arc w coincides with the middle point 1 at those pointswhere j of the clamping-jaws on the traction-rope,

When a car and were it not for the counterweight the wheels as would runin advance of the carriage or lag behind it.

In the forms shown in Figs. 14 and 15 the bucket is hung at the centerof the arm connecting the counterweight w with the carriage and thewheels 00 ournale d directly on the carriage b. In this case if it werenot for the counterweight the wheels x wouldbe unequally loaded, tendingto lift one of the wheels, and consequently cause derailment. In Figs.13 and 14: the counterweight w is formed as a guide for the bucket-bail,while in Fig. 15 the counterweight is adjustable along the armconnecting it to the carriage. It will be seen that in all thestructures shown the grip takes the form of a pivoted arm and that thegrip-operating devices are actuated at the center of movement of the armand the outer form or end of the-arm substantially fits thesheave-grooves, so that the least possible displacement of thetraction-rope is necessary in passing them. Furthermore, the pivotedarrangement of the grip permits it to be swung at any angle, and thecarriage in most cases being held away from the sheave is permitted tomake the smallest possible turn whether in a horizontal curve or anyother.

Having thus described our invention, what we claim as new therein, anddesire to secure by Letters Patent, is

1. The combination with a carriage and an axially-movable pivot mountedthereon; of a cable-grip comprising gripping-jaws revoluble on saidpivot and means actuated by the axial movements of the pivot to actuatethe aws.

J 2. In a ropeway-carriage, a traction-rope grip pivoted to thecarriage, an axiallymovable pivot to actuate the jaws of the grip andmeans to automatically move the pivot and hold it in its moved position,substantially as described.

3. In a ropeway-carriage, a traction-rope grip having a jaw hooked atits end, one or more cooperating jaws, an axis around which the jaws aremovable, and axially-movable means to clamp the jaws, substantially asdescribed.

4. In a ropeway-carriage having carrierrope wheels, a swinging gripbelow them to engage the traction-rope and a counterweight below thegrip substantially equal to the weight of the carriage above thetractionrope, for the purpose set forth.

5. A grip for ropeways comprising pivoted jaws to engage the rope, saidjaws movable about a divided axis on the ropeway-carriage and means toaxially move each part of the divided axis to and from each other,substantially as described.

IIS

6. A grip for ropeWays comprising jaws as our invention We have signedour names in lvoted. to ether to en a 'e the traction-r0 e resence ofthe SllbSCl'lblDfi wltnesses.

b D D 7 b said jaws revoluble about an axis on the rope- WILHELMELLINGEN. carriage, oppositely-directed screws support- FRITZ DOEI-ILE.

5 ing the axis, a gear-Wheel 011 each screw and a suitab1y-operatedrack-bar to actuate the gear-Wheels, whereby the portions 01' the aXismay be moved to and from each other in alinemerit to open and close thej a s, substantially Witnesses for Fritz Doehle:

10 as described. L. H. MUNIER,

In testimony that We claim the foregoing FELICIEN VULLIE SERNEK.

i/Vitnesses for VVilhehn Ellingen:

GUSTAV ELsNER, VVILHELM KUPPERs.

